wilcox



@eine tatrs @anni @frn JOHN lV. WIILGX, 0F ,NEW YORK,y N. Y

Letters Patent No. 67,092, dated July 23, 1867, l

DOCUMENT-Euratom,

dige tlgnnle manif in in tipa taint utnit mit mating' am nf tu@ same.

TO ALL WHO IT MAY CONCERN:

Beit known that I, JOHN W. WrLCoX, ot' the city, county, and State ofNew York, have invented a new and useful Improvement in Envelopes; and Ido hereby declare that the following is a full, clear, and exactdescription thereof, which will enable others skilled in the art to makeand use the same, reference being had to the accompanying drawings,forming part of this specification, in which- Figure I is a plan view ofthe paper as cut and creased for folding and forming my improvedbox-envelope.

Figure 2 is a top View of the envelope when nished.

Figure 3 is a longitudinal section of my improved box-envelope taken inthe line x :r,'ig, 2

Figure 4 is a transverse section ot' the same taken in the line y n fig.2.

Similar letters of reference indicate like parts.

This invention relates te an improved mode of forming box ordocument-envelopes, and consistsin so cutting the paper or othermaterial of which they are made as to involve the least possible waste,and in creasing and folding the ends of the envelopes together in suchmanner that they are fortied and sti'ened by a double thickness of thematerial throughout and a treble thickness at the corners, whereby thebox-envelope is formed wholly of'one sheet, and is very materiallyimproved in construction, and made stronger than by any known method ofarrangement.

For cutting theform or pattern of the envelope :md creasing it forfolding, as represented in tig. 1, I employ the usual tools andprocesses of the trade, and out the paper or other material in thegeometrical propertions required to make the ordinary rectangularenvelope for containing documents, commonly called boxenvelopes, whichare in the form of a parallelopiped.

In g. l, A is the back of the envelope, B the top, and C the Hap. Thedotted lines a a in the drawing indicate the creases in which the foldsof the envelopes are made'to give it the proper form for constructionand use. On the ends of the envelope creases are made at proper distancefrom the outer edges and parallel to them, and inline with the cut atthe ends of the flap C. These creases extend across the pat-tern oftheenvelope, to make aps for turning up and forming the ends o' thebox-envelope, b b being the flaps thus provided on the back A, and c ethe. flaps on the top Between the aps b b and e c', at each'end ot' theenvelope, are small flaps ortongues 0l d, and on `the opposite ends ofthe aps 6 b are similar small flaps or tongues e e, which ilaps are allmade by cutting away narrow strips of the material, or" by'division cutsrunning from the edge ot' the pattern to the creases for folding. ,y

When the pattern has been cut and creased in this manner, thebox-envelope is formed by'folding the top B over the back A in theusua'l way, and in such manner that the end aps 6 and c c shall lieagainst and in each other at their respective ends, and be pasted orgummed together, as shown by iig. 3. By this arrangement of the parts,the ends of the box-envelope are made of double thickness of thematerial throughout, to give strength precisely whereit is most needed,and furnish substantial transverse supports for the envelope. The smallflaps or tongues e e and d d are also folded in and pasted down upon theends, either between the deps b b and c c or on the inside, as desired,and as shown in iig. 4. This arrangement of the small flaps, so far asthey extend, makes a treble thickness of the ends, and, being in thecorners .of the envelope, aii'ords great additional strength at vpeintswhich require fcrtifying. A further improvement in the construction oi'envelopes is doubling and pasting two angular flaps ff within the top B,which are formed by making ono division cut running a short distancefrom the edge, and creasing from its terminus to the edge atl anydesired angle, as shown by fig. 1. These ilaps add strength to themiddle of the envelope, where the ends of documents are introduced andthe tie ofthe flap binds, which is a point of importance and value. Theflap C is turned over, and secured in the ordinary way when used.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

Constructing a box or document-envelope, with double ends throughout andtreble ends in part, by folding and uniting flaps 4cut out of one sheetof paper or other material, substantially as herein described.

The above specification of my invention signed by me this 5th day ofOctober, 1866.

JOHN W. WILOOX,

Witnesses:

WM. R MQNAMARA, ALEX. F. Renners.

